Mozilla Firefox ESR < 52.5.2 Private Mode Fingerprinting Vulnerability (macOS)
Medium Nessus Plugin ID 105211
SynopsisA web browser installed on the remote macOS or Mac OS X host is affected by a security bypass vulnerability.
DescriptionThe version of Mozilla Firefox ESR installed on the remote macOS or Mac OS X host is prior to 52.5.2. It is, therefore, affected by a flaw related to handling Private Mode, web workers, and IndexedDB access that allows an attacker to cause persistent data to exist that can uniquely fingerprint a user.
SolutionUpgrade to Mozilla Firefox ESR version 52.5.2 or later.